1 /* 2 * mesa 3-D graphics library 3 * 4 * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included 14 * in all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 */ 24 25 /** 26 * \brief Array type draw functions, the main workhorse of any OpenGL API 27 * \author Keith Whitwell 28 */ 29 30 31 #ifndef DRAW_H 32 #define DRAW_H 33 34 #include <stdbool.h> 35 #include "main/glheader.h" 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 struct gl_context; 42 struct gl_vertex_array_object; 43 struct _mesa_prim 44 { 45 GLubyte mode; /**< GL_POINTS, GL_LINES, GL_QUAD_STRIP, etc */ 46 47 /** 48 * tnl: If true, line stipple emulation will reset the pattern walker. 49 * vbo: If false and the primitive is a line loop, the first vertex is 50 * the beginning of the line loop and it won't be drawn. 51 * Instead, it will be moved to the end. 52 */ 53 bool begin; 54 55 /** 56 * tnl: If true and the primitive is a line loop, it will be closed. 57 * vbo: Same as tnl. 58 */ 59 bool end; 60 61 GLuint start; 62 GLuint count; 63 GLint basevertex; 64 GLuint draw_id; 65 }; 66 67 /* Would like to call this a "vbo_index_buffer", but this would be 68 * confusing as the indices are not neccessarily yet in a non-null 69 * buffer object. 70 */ 71 struct _mesa_index_buffer 72 { 73 GLuint count; 74 uint8_t index_size_shift; /* logbase2(index_size) */ 75 struct gl_buffer_object *obj; 76 const void *ptr; 77 }; 78 79 80 void 81 _mesa_set_varying_vp_inputs(struct gl_context *ctx, GLbitfield varying_inputs); 82 83 /** 84 * Set the _DrawVAO and the net enabled arrays. 85 */ 86 void 87 _mesa_set_draw_vao(struct gl_context *ctx, struct gl_vertex_array_object *vao, 88 GLbitfield filter); 89 90 void 91 _mesa_draw_gallium_fallback(struct gl_context *ctx, 92 struct pipe_draw_info *info, 93 unsigned drawid_offset, 94 const struct pipe_draw_start_count_bias *draws, 95 unsigned num_draws); 96 97 void 98 _mesa_draw_gallium_multimode_fallback(struct gl_context *ctx, 99 struct pipe_draw_info *info, 100 const struct pipe_draw_start_count_bias *draws, 101 const unsigned char *mode, 102 unsigned num_draws); 103 104 #ifdef __cplusplus 105 } // extern "C" 106 #endif 107 108 #endif 109